From b11c69873e98643bc743a9b7794bf47a1f81fc58 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Sat, 25 Jun 2016 20:43:50 -0400
Subject: emacsmail: don't require an argument

---
 emacsmail.sh.in | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/emacsmail.sh.in b/emacsmail.sh.in
index f1a3e1c..0cec264 100644
--- a/emacsmail.sh.in
+++ b/emacsmail.sh.in
@@ -20,7 +20,7 @@
 m4_include(common.sh.in)
 
 usage() {
-	print 'Usage: %q [OPTIONS] MAILTO_URL' "$0"
+	print 'Usage: %q [OPTIONS] [MAILTO_URL]' "$0"
 	print 'Use Emacs to open RFC 2368 "mailto:" URLs'
 	echo
 	print 'Yes, I know that RFC 2368 is obsoleted by RFC 6068.'
@@ -56,7 +56,11 @@ main() {
 		done
 		urls=("$@")
 		if [[ $mode == normal ]]; then
-			[[ ${#urls[@]} = 1 ]] || mode=error
+			case ${#urls[@]} in
+				0) urls=('mailto:');;
+				1) :;;
+				*) mode=error;;
+			esac
 		fi
 	fi
 
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